Battery case



FIG. 1 is a top, front, right side perspective view of a battery case showing our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side being the same;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 bottom plan view thereof. 

The ornamental design for a battery case, as shown and described. 